body {
    color: #fff;
    font-family: "微软雅黑";
    font-size: 14px;
}
/*遮罩层*/
#screenbox {
    position: absolute;
    height: 100%;
    width: 100%;
    z-index: 8888;
    background-color: #fff;
    filter: alpha(Opacity=80);
    -moz-opacity: 0.5;
    opacity: 0.5;
}

    #screenbox img {
        position: absolute;
        left: 50%;
        top: 30%;
        margin-left: -110px;
    }
/*错误消息*/
#myError, #mySuccess {
    text-align: center;
    display: none;
    height: 36px;
    line-height: 36px;
    padding: 0;
    margin: 0;
    position: fixed;
    z-index: 9999;
    width: 100%;
}
.wrap1 {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    margin: auto
}
/*把整个屏幕真正撑开--而且能自己实现居中*/
.main_content {
    background: url(/Content/images/main_bg.png) repeat;
    margin-left: auto;
    margin-right: auto;
    text-align: left;
    float: none;
    border-radius: 8px;
}

.form-group {
    position: relative;
}

.login_btn {
    display: block;
    background: #3872f6;
    color: #fff;
    font-size: 15px;
    width: 100%;
    line-height: 50px;
    border-radius: 3px;
    border: none;
}

.login_input {
    width: 100%;
    border: 1px solid #3872f6;
    border-radius: 3px;
    line-height: 40px;
    padding: 2px 5px 2px 32px;
    background: none;
    color:#fff;
}

.glyphicon.icon_font {
    position: absolute;
    top: 12px;
    left: 10px;
    font-size: 18px;
    color: #3872f6;
}

.font16 {
    font-size: 16px;
}

.mg-t20 {
    margin-top: 20px;
}

#grad {
    background: -webkit-linear-gradient(#4990c1, #52a3d2, #6186a3); /* Safari 5.1 - 6.0 */
    background: -o-linear-gradient(#4990c1, #52a3d2, #6186a3); /* Opera 11.1 - 12.0 */
    background: -moz-linear-gradient(#4990c1, #52a3d2, #6186a3); /* Firefox 3.6 - 15 */
    background: linear-gradient(#4990c1, #52a3d2, #6186a3); /* 标准的语法 */
}
@media (min-width:200px) {
    .pd-xs-20 {
        padding: 20px;
    }
}

@media (min-width:768px) {
    .pd-sm-50 {
        padding: 50px;
    }
}